One of my favorite all time free tools/services is a clever little service from Google to help keep you up to date on any subject. If you have an ego half as big as mine, you’ll be tickled pink with Google Alerts.
Google Alerts provides you with email updates of latest relevant Google results (web, news, amir ebrahimnia .. etc.) based on your choice of query or topic. For instance if you want to keep up with news about your company X, just type that in as your search term and you will receive notifications of new Google results that contain that search term pretty much as soon as it happens. Pretty nifty eh?